4106 ('62) muffler needed. ASAP. any ideas on a source?

luvrbus · July 13, 2014, 06:21:31 AM

Seems to me re fitting a non GM muffler in than area if one didn't keep the piping almost the same the way it as OEM stuffed in the fan and radiator area would cause heating problems on a 4106. The OEM is a unique muffler they don't seem like they get all that hot because of the design and it's a heavy sucker

for a muffler

chessie4905 · July 13, 2014, 08:29:30 AM

A metal fabrication shop should be able to make a replacement if old one has enough of original material left.

624106 · July 13, 2014, 04:24:02 PM

Questions:'re Donaldson #M120131 5" oval muffler, TomC mentioned about a days work of welding, what exactly is involved?
I have stock crossover pipe and collector. Can we use these parts or fabricate new ones, or modify stock parts, etc. ??
Still looking for stock muffler, since it would be bolt-on and go.

Appreciate all the help. It has been very beneficial.

Utahclaimjumper · July 13, 2014, 04:45:38 PM

I have seen several 06 mufflers that have had the top removed and mods made to them, you haven't said WHY your can't pass inspection, (too loud, leaks, holes,) all these can be repaired.>>>Dan

624106 · July 13, 2014, 06:10:36 PM

Been repaired for years. Now beyond repair.

TomC · July 13, 2014, 08:51:28 PM

My exhaust system uses u-bolt clamps and stainless band clamps. I didn't weld anything. Some pipes are made in one piece with various bends, but the pipes are connect together with stainless band clamps. Then you can take it apart again if needed. Good Luck, TomC

624106 · July 14, 2014, 09:30:04 AM

Located used stock muffler: Luke (at U S Coach) came through again.
THANKS to every one who posted.

luvrbus · July 14, 2014, 10:42:01 AM

Good old Luke he always come thru one way or the other

4104SoFl · July 14, 2014, 10:47:03 AM

Luke is the man!

TomC · July 14, 2014, 08:43:18 PM

So staying with the stock stuffed up muffler. At least it is quiet. Good Luck, TomC

OneLapper · July 15, 2014, 11:22:12 AM

Just for reference, you can attach the Donaldson 5 incher without welding, just as Tom C is doing. I've done the same thing without issues. I ended up fabricating the same lip that the OEM muffler uses, then welding that to the Donaldson. That setup gives me the same attachment method as the OEM muffler uses. It's just a bit more secure than using band clamps.

Others have welded the Donaldson to the vee collector. I would hate to consider the amount of time and effort to remove that setup. It's tight to begin with!

Mark

luvrbus · July 15, 2014, 11:34:52 AM

I changed manifolds and had new pipes bent to install dual exhaust on Jame's 4106 they were switched to the passengers side sounds good but wasn't a easy deal 3 days it took us

bevans6 · July 15, 2014, 12:39:24 PM

Donaldson makes a number of style 5 mufflers, which are the ones with inlet and outlet on the same end. That one is the lowest restriction and the loudest, they have others that are quieter. That catalog can give you some good ideas, but you may have to do some fabricating to make something fit. That catalog should also have a selection of Y's, elbows, Tee sections, all sorts to help you out.

Brian